Postcard is a lightweight email client built with GTK 4, libadwaita and Python.
Inspired by Geary’s three-pane layout, it provides folders, threaded conversations and a reading pane while keeping mail cached locally. It supports multiple IMAP and SMTP accounts, rich-text composition, full-text search and background mail synchronization.
This is free and open source software.
Key Features
- Multiple IMAP and SMTP accounts.
- Three-pane interface with folders, conversations and reading pane.
- Threaded conversations and nested mail folders.
- Full-text search across locally cached mail.
- Offline reading with background synchronization.
- Passwords stored securely in the system keyring.
- TLS and STARTTLS support with per-server configuration.
- Automatic server settings for many popular mail providers.
- Rich-text composer with formatting, lists and links.
- Compose, reply and forward messages with Cc and Bcc support.
- Drafts and Outbox support.
- Recipient autocomplete based on addresses found in mail.
- Displays HTML and plain-text messages.
- Blocks remote images until explicitly permitted.
- Archive, trash, move and undo actions for individual or multiple conversations.
- Desktop notifications for new mail.
- Optional sender avatars.
- Can register as the default handler for mailto links.
- No accounts, telemetry or external cloud service required.
Website: github.com/gxanshu/postcard
Support:
Developer: Anshu
License: GNU General Public License v3.0
Postcard is written in Python. Learn Python with our recommended free books and free tutorials.
Related Software
| Graphical Email Clients | |
|---|---|
| Thunderbird | Popular free, cross-platform e-mail, RSS and newsgroup client |
| Kmail | Email component of Kontact |
| Sylpheed | Simple, lightweight client |
| Mailspring | New version of Nylas Mail |
| Claws Mail | Lightweight yet powerful and full-featured client |
| Evolution | Provides integrated mail, addressbook and calendaring functionality |
| Geary | Mail client for GNOME written in Vala |
| Astroid | Lightweight and fast Mail User Agent |
| Balsa | Email client for GNOME |
| Also known as Pantheon Mail | |
| Dodo | Based on the command line email swiss-army-knife notmuch |
| Aerion | Standalone lightweight e-mail client inspired by Geary |
Read our verdict in the software roundup.
 Explore our carefully curated directory of recommended free and open source software, covering every major software category.The directory forms part of our extensive collection of articles for Linux enthusiasts. It includes hundreds of detailed reviews, together with free and open source alternatives to proprietary software from companies such as Google, Microsoft, Apple, Adobe, IBM, Cisco, Oracle, and Autodesk. LinuxLinks also covers interesting projects worth exploring, Linux-compatible hardware, free programming books and tutorials, and much more. Know a useful free and open source Linux application that we haven’t covered? Tell us about it using our submission form. |
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I’ll make sure to keep this project well maintained and continue improving it to serve Linux users well
Lovely, we look forward to seeing your project progress!